Plant protein drink may shield aging Hearts—A trial puts it to the test
NCT ID NCT04923555
First seen Aug 05, 2026 · Last updated Aug 06, 2026 · Updated 1 time
Summary
This trial tests whether a single yogurt drink made from vegetable proteins rich in leucine, cysteine, and arginine can improve blood vessel function and reduce inflammation in older adults with cardiometabolic risk. Participants, aged 65 and older, will consume either the vegetable protein drink or an animal protein version, and researchers will measure how well their blood vessels dilate before and after. The goal is to see if plant-based proteins can be a heart-healthy alternative to animal proteins for aging populations.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- A yogurt drink made with vegetable proteins rich in leucine, cysteine, and arginine
- What this could lead to
- If effective, this could support recommendations to replace animal proteins with plant-based options in older adults without harming heart health, and possibly improve vascular function.
- What could go wrong
- This is a small, early-stage trial with only 33 participants, so results may not apply broadly. The drink is tested only once, so any effects might be short-lived and not reflect long-term benefits.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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33 people
The number who actually took part.
- Started
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Nov 2021
- Finished
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Jun 2022
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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65 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Man or woman * 65 years old and older (inclusive) * At least 2 of the following 4 cardiometabolic factors: * Waist circumference ≥88 cm for women, and ≥94 cm for men * Fasting triglyceridemia \>1,5 g/L OR HDL level \< 40 mg/dl for men, and \< 50 mg/dl for women * Fasting blood glucose ≥ 100 mg/dl * Systolic blood pressure \>130mmHg ou diastolic \> 85 mm Hg * Accept not to change his lifestyle throughout the study * Accept to consume the same meal the day before exploration days, making sure to exclude non-recommended foods and agreeing to detail its content in a food diary * Ability to give informed consent to participate in research * Affiliation to Social Security Exclusion Criteria: * Acute pathology (unstable or terminal pathology) * Renal failure (clearance \<40 mL / min) * Asthma or chronic respiratory disease * Systolic or diastolic blood pressure in the judgement of the investigator * Diabetic (treated or not) * Treated with chemotherapy * Gastrointestinal, thyroid, cardiac or vascular illness in the judgement of the investigator * Biological examination no compatible with the study in the judgement of the investigator * Medical and/or surgical history no compatible with the study in the judgement of the investigator (previous cardiovascular events) * AgHbS, AcHbc, HCV and HIV positive serology * Concomitant treatment no compatible with the study in the judgement of the investigator * Diet or change in body mass \> 2 kg in the 30 days before the study * Following a diet incompatible with the nutritional protocol (food intolerances, vegans, exclusion of certain food ingredients) * Allergies to any of the components of the test meals * Alcohol consumption\> 2 glasses / day * Current smokers (\> 6 cigarettes per week) * Subjects involved in another clinical trial or being in the exclusion period of another study or having received a total compensation greater than 4,500 euros over the 12 months preceding the start of the trial * Subject benefiting from a legal protection measure (curatorship, guardianship, safeguard of justice) * Refusal to participate
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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CHU clermont-ferrand
Clermont-Ferrand, France
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